Sharp LC-46SE94U Service Manual page 50

LC-46SE94U/LC-46SE941U
PC: No external input video [INPUT-7]
Is INPUT-7 selected on the input select menu screen?
Select INPUT-7 on the input select menu screen for the right input signal.
Is IC2202(EEPROM) accessed by I2C, with PC connected, to read the
DDC_I2C SCL/SDA data?
Check the DDC line and its peripheral circuits (IC2202 and its peripher-
als).
YES
Are there the video signal inputs at pins(AN15)(G), (AM15)(B) and (AK16)(R) of
IC8001(CPU)?
Are there the VSYNC/HSYNC signal inputs at pins(AJ16) and (AH16) of IC8001?
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001?
LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7),
LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5),
LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6),
LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4),
LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2),
LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3),
Check the panel module.
No video (6)
NO
YES
YES
6 – 7
Check the line between SC2201 and
NO
IC8001. (Q2211, IC2201, etc.)
Check IC8001 and its peripheral circuits.
(IC8151 thru IC8154, etc.)
NO